[Solved]link flap cisco switch port error disabled
link flap cisco switch port error disabled: A Cisco switch port enters err-disabled state due to link flapping when the interface toggles up/down rapidly (typically 3+ times within 10 seconds), often caused by faulty cables, SFP modules, or speed/duplex mismatches. link flap cisco switch port error disabled To resolve, inspect physical Layer 1 components, swap …